- In all cases the gnomon lies in the plane of the meridian .
- A stake used for this purpose was the earliest type of sundial and was called a gnomon .
- It appears as a small gnomon with lines extending in each major direction ( along the x , y , and zaxis )
它看起來象是一個小的指時針和在每個主要的軸向上（ x ， y ， z軸）的線的延伸。
- From then on , people were able to measure time and determine seasons based on the position and length of the gnomon ' s shadow
- It's difficult to find gnomon in a sentence. 用gnomon造句挺難的